... medium thermal stability and high impact resistance. Synthetic diamond powder(high grade)Feature:Shape is complete with high purity, ... -toughness,medium thermal stability and high impact resistance.Suitable for cutting mid-hard granite and marble,cutting/drilling non ... 325, 325/400Grade: MBD4, MBD6, MBD8, MBD10, MBD12Usage:Suitable for cutting mid-hard granite and marble,cutting/drilling non-reinforced ...